topaz

Noun
  1. A yellow quartz (synset 115101090)
    is a type of: quartz - a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities
    same as: common topaz, false topaz
  2. A mineral (fluosilicate of aluminum) that occurs in crystals of various colors and is used as a gemstone (synset 115100916)
    is a type of:
    • mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
    • transparent gem - a gemstone having the property of transmitting light without serious diffusion
  3. A light brown the color of topaz (synset 104980287)
    is a type of: light brown - a brown that is light but unsaturated
    same as: tan

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